{"id":344723,"date":"2024-01-15T13:35:45","date_gmt":"2024-01-15T13:35:45","guid":{"rendered":"\/forum\/forums\/topic\/issue-regarding-computing-interfacial-area-concentration-in-ansys-fluent\/"},"modified":"2024-01-15T13:35:45","modified_gmt":"2024-01-15T13:35:45","slug":"issue-regarding-computing-interfacial-area-concentration-in-ansys-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/issue-regarding-computing-interfacial-area-concentration-in-ansys-fluent\/","title":{"rendered":"Issue regarding computing Interfacial Area Concentration in Ansys Fluent"},"content":{"rendered":"

I want to compute interfacial area concentration in Fluent UDF. Ansys document is telling the same can be called using the macro C_IAC(c,t_s);<\/p>\n

<\/p>\n

<\/p>\n

However the the Fluent compiler does not reconige this command and gives error<\/p>\n

<\/p>\n

It is telling the C_IAC is an undefined symbol. <\/p>\n

from experience I feel, this is temporary solver variable and needs to allocated memory and defined before use<\/p>\n

#define C_IAC(c,t) C_STORAGE_R(c,t,SV_xxxxxx)<\/p>\n

So something like this needed to added at the top. <\/p>\n

But I am not sure under what name the interfacial area concentration variable is stored in Fluent .<\/p>\n

Kindly have a look and inform me what exact name I should replace with SV_xxxxxx to access the C_IAC(c,t).<\/p>\n","protected":false},"template":"","class_list":["post-344723","topic","type-topic","status-closed","hentry","topic-tag-fluent","topic-tag-interfacial-area","topic-tag-multiphase-eulerian","topic-tag-udf"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t